Device in cigar wrapping mechanisms



Feb. 11, 1964 v. A. AHLBOR DEVICE IN CIGAR WRAPPING MECHANISMS Filed Sept. 8, 1961 Q V A NW 9 I Q mq W 1 l i l L t vm ww 1 1 W 0% mm IIH@ \J/l W m m w. -"I n MN m m 3 LP 2 u? & m Q \b i 1 w m .N mm mm 8 m Q Q s Rm F m gv United States Patent Oil ice DEVECE 1N tClSAR WRAPPING MECHANISMS Valter A. Ahlhor, lifirornrna, Sweden, assignor to Arenco Alrtieholag, Vallinghy, Sweden, 21 Swedish joint-steel;

company Filed Sept. 8, 1961, Ser. No. 136,923 flaims priority, application Sweden Sept. 15, 1964) 2 Claims. (Qt. 131-36) This invention relates to cigar wrapping mechanisms having a wrapping or tucking needle for applying the tuck end of a wrapper to the end of a cigar bunch and has for its prime object to operate the needle such that the needle can be withdrawn Without being damaged and without damaging the wrapped tuck end of the wrapper even if the needle is used for applying the tuck end to a particularly blunt-ended cigar bunch and accordingly is directed very obliquely in relation to the longitudinal direction of the bunch.

For this purpose the tucking needle is, according to the invention, slidingly jour-naled in a guiding sleeve which is reciprocably movable in the longitudinal direction of the bunch and which is provided with a free end directed obliquely against the end of the bunch, from which free end the tucking needle projects when being applied to the end of the bunch. For this purpose the free end of the guiding sleeve directed against the bunch may, for example, be made crooked.

A specific embodiment of the invention will now be described with reference to the accompanying drawings, in which:

FIGURE 1 shows an embodiment of the invention, partly in section, and FIGURES 2, 3 and 4 show the positions of the tucking needle and the guiding sleeve before, during and after the application to the end of a bunch.

The bunch B is assumed to be placed in a rolling mechanisrn 1, which is provided with the usual rollers by means of which the hunch is rotated during the wrapping of the bunch in a wrapper delivered by a wrapper carrier 2. In front of the end T of the bunch a flexible thread-like or plate spn'ngdike tucking needle 3 is slidably journaled in a straight guide opening 4% formed, in correspondence to the cross section of the needle 3, in a bushing 5 on the free end of the guiding sleeve 4, through which the needle extends backwards to a stem 6 to which it is attached and which is slidably mounted in a sliding sleeve 7. The sliding sleeve 7 is slidably journaled in slide bearing 8 in a frame 9, in which is journaled a camshaft 11 driven by a chain iii. The guiding sleeve t is attached to the front of the sliding sleeve '7.

To the shaft 11 is secured a cam disc 12 with a cam track 13 in which is inserted a cam roller 15 journaled on an arm 14. One end of the arm 14 is pivoted on a stud 16 in the frame 9 and the free fork-shaped end is inserted in a track 17 in the sliding sleeve 7. Another earn disc 13 secured to the shaft 11 is provided with a 03.111 track 19 in which is inserted a cam roller 21 journ-aled on an arm 29. The arm is pivoted on a stud 22 in the frame 9 and its [free fork-shaped end grasps the tucking needle stem 6, projecting from the sliding sleeve 7 between a pair of ring-shaped flanges 23 on the stem. The shape of the tracks 13 and 1-9 and the angular positions 3,12%,85d Patented Feb. 11, 1964 of the cam discs, 12 and 1% in relation to each other on the shaft 11 are such that the tucking needle 3 and the guiding sleeve 4 are moved in a manner described in the following when the tucking needle is operated.

()n an arm 24- is journaled a cam roller 26 engaging a cam disc 25 secured to the shaft 11. The arm 24 is provided with a toothed segment 27 engaging a gear ring 23 on a sleeve 29, which is secured to the sliding sleeve 7 by means of a key 30.

From the starting position shown in FIGURE 1 the arm 2% moves the tucking needle 3 which is almost entirely enclosed in the guiding sleeve 4 out from the guidting sleeve 4 towards the bunch B to the position shown in FiGURE 2. After that the two arms 14 and 2t move the guiding sleeve 4 and the tucking needle .3 in mutually unchanged positions to the position shown in FIGURE 3, causing the tucking needle to apply and keep the tuck end of the wrapper delivered by the wrapper carrier 2 to the end T of the bunch. Then the sliding sleeve 7 and the guiding sleeve 4 as well as the tucking sleeve needle 3 are put in rotation through about 1.5 to 2 revolutions by the arm 24- and are brought to rotate in the same direction and with the same velocity as the bunch B. After that the stem 6 is moved backwards by the arm 26) in the now stationary sliding sleeve '7 causing the tucking needle 3 to be withdrawn into the guiding sleeve 4 in a linear motion without any rocking or parallel motion to the position shown in FIGURE 4, and after that the guiding sleeve 4 and the tucking needle 3 are moved in mutually unchanged positions by th two arms 14 and 26 back to the starting position shown in FIGURE 1.

What I claim is:

1. In a wrapping machine, mechanism for applying the tuck end of a wrapper to the end of a cigar bunch, comprising a frame having a sliding sleeve rotatab-ly mounted therein, a tubular guide fixedly attached to said sleeve, a tucking needle slidingly journaled in said tubular guide, said sliding sleeve having a cam and cam arm operable thereon reciprocably moving said sliding sleeve in the longitudinal direction of the bunch, said guide having rigidly fixed thereto a free end bearing portion extending obliquely to the longitudinal axis of the bunch and by means of which the end of the tucking needle is guided obliquely against the end of the bunch in a direction forming a predetermined angle to the longitudinal direction of the bunch.

2. A cigar wrapping machine as claimed in claim 1, and in which a second cam and cam arm are provided which latter is connected with said needle and moves said needle from a starting position out from the free end of said guide, said needle and said guide together being moved towards the bunch by means of said calm operated arms so that the end of the wrapper is pressed against the end of the bunch by the tucking needle after which the end or" the tucking needle is withdrawn in the guide and the needle and the guide are reset to the starting position by said cam operated arms.

References Cited in the file of this patent UNITED STATES PATENTS 

1. IN A WRAPPING MACHINE, MECHANISM FOR APPLYING THE TUCK END OF A WRAPPER TO THE END OF A CIGAR BUNCH, COMPRISING A FRAME HAVING A SLIDING SLEEVE ROTATABLY MOUNTED THEREIN, A TUBULAR GUIDE FIXEDLY ATTACHED TO SAID SLEEVE, A TUCKING NEEDLE SLIDINGLY JOURNALED IN SAID TUBULAR GUIDE, SAID SLIDING SLEEVE HAVING A CAM AND CAM ARM OPERABLE THEREON RECIPROCABLY MOVING SAID SLIDING SLEEVE IN THE LONGITUDINAL DIRECTION OF THE BUNCH, SAID GUIDE HAVING RIGIDLY FIXED THERETO A FREE END BEARING PORTION EXTENDING OBLIQUELY TO THE LONGITUDINAL AXIS OF THE BUNCH AND BY MEANS OF WHICH THE END OF THE TUCKING NEEDLE IS GUIDED OBLIQUELY AGAINST THE END OF THE BUNCH IN A DIRECTION FORMING A PREDETERMINED ANGLE TO THE LONGITUDINAL DIRECTION OF THE BUNCH. 